Electric shoe cleaning and polishing machine



il 12 1927. Apr H. POWELL ET A1.

ELECTRIC SHOE CLEANING AND POLISHING MACHINE me@ oct. e. 1925 Haznmn rom, or

y j f 1,624,158

PATENT@ OFFICE.

KANSAS CITY, MISSOURI, AND WALTER P. GROVES, F

i EDWABDSVILLE, KANSAS.

EIAEUIBIC SHOE CLEANING AND POLISHING MACHINE.

Application led October 6, 1925. Serial No. 60,722.

This invention relates to electric shoe cleaning and polishing machines and has for its prima-ry object the provision of certain refinements and improvements of construction to ,be used in connection with a like machine which has been made the subject matter of United States `Letters Patent Number 1,528,628, issued March 3, 1925, to

Hezekiah Powell, one of the joint inventors of the improvements which are fully set forth' herein. l

A further object of this invention is to provide means for imparting switch closing and opening movement to the longitudinally movable shaft of anv electric shoe cleaning and polishing machine.

An even further object of the present invention is the provision of a simple and effective combination of easilyv constructed parts which maybe used to render the action of electric shoe polishing -machines positive and efficient.

Another object of our "invention is to pro-` vide means for starting and stopping an electric shoe cleaning and polishing machine,

' which is formed as apart thereof, and which is positioned at a point within convenient reach topermit the operator to utilize the lsame without releasing his grip.

Minor objects will appear during the course of the detailed specification which refers to the accompanying drawing, in which;

Figure 1 is a side elevation of an electric structed in accordance with our invention.

Fig. 2 1s another side elevation with parts broken away for clearness.

Fig. 3 is a fragmentary section of the machine taken on line III-III of Fig; 2.

Fig. 4 is an enlarged detailed cross sec'- tion of the machine taken on line IV--IV of Fig. 3, looking in the direction of the arrow. 1

Fi 5 is a cross section taken on line V of Fig. 2, and

Fig. '6 is an enlarged perspective view showing one of the members used for imparting longitudinal' reciprocating movement to the shaft of the machine.

Like reference characters refer to similar parts thru hout the several views, and the numeral 7 esignates an electric motor, the housing of which is formed to provide a vshoe cleaning and polishing machine con-4 matical way, theV important features of thisl invention only being clearly and accurately `illustrated. Secondary shaft 10, carried by the primary shaft 8, has a pin and slot connection 11 therewith which permits longitudinal movementof secondary shaft 1() Within primary shaft 8, and causes shaft 10 to be driven by shaft 8.

An electric switch carried by the housing. of motor 7 adjacent one end thereof has a pan' of stationary contact points 12 connected by any suitable means 13 to a source of` electrical energy. A pair of co-ac`ting contactpoints 14 are slidably mounted to be lnoved-into and out of engagement with contact points 12' whenever secondary shaft 1() is moved inwardly to depress a spring 15. It is clear -that this longitudinal movement of secondary shaft 10 takes place whenever an inward pressure is exerted through the brush .o`r other removable member 16, which is mounted on that end opposite the switch engaging points.

It has'been found in practice, that the Yso required pressure to depress spring 15 and close contact points 12 and 14 is oftentimes greater than it should be, and-as ay result, the proper touch for polishing can not be obtained.

A no'vel means has been devised whereby the switch may be held closed, or opened again without pressure being exerted through brush 16 and secondary shaft 10. This means may be used in connection with the pressure method of closing the switch without interfering with the same.

The preferred form of carrying out this feature has been illustrated in 'the drawing. The endof shaft 10 adjacent to the electric switch is provided with a pair of spaced apart collars 17 between which the ends 18 of yoke .19 are positioned to impart longitudinal movement to shaft 10 and, at the same time. permit its rotation.

As shown in Fig. 6, a cam plate 20 is formed integrally with yoke 19 and is disposed at right angles to the axis of shaft passing between ends 18. Any suitable lug or lugs 21 may bel used to pivotally support yoke 19 within motor housing 7.

An operating trigger 22 also pivotally supported as at 23 to motor houslng 7 has Aits housed or inner end 24 in sliding ening a great deal of inward pressure thereto,

it is merely necessary to actuate trigger 22 to the position .shown by the dotted line in Fig. 4. This action causes the end 24 of trigger 22 to ride over the cam surface of plate and force the same laterally through an arc having its center at the pivotal point 25 of yoke 19. Obviously, this causes ends 18 to force shaft 10 inwardly against the pressure of spring 15, thus bringing-contact points 12 and 14 together. To release or stop the machine, trigger 22 may again be snapped into the position illustrated in Figs. 3 and 4. 'i

The applicatmn and operation of the device and especially the novel means for imparting longitudinal reciprocating movement to the shaft 10 has been madeI clear through the above description.

It is understood that many changes and modifications may be made in the construction of this invention, and it is desired to be limited only by the scope of the appended claims.

What we claim is:

1. In a machine of the kind described,

having in combination with an electricmotor, a shaft rotatable by said motor and mounted therein for longitudinal movement, a switch associated with the motor and adapted to control the current thereto, said switch being opened and closed as said shaft is moved longitudinally andmeans including a pivotally mounted yshaft engaging member having a cam .member integral therewith and a manually operable means for actuating said shaft engaging means around its pivot, engaging said cam member for imparting longitudinal reciprocating movement to said shaft.

2. A machine of the kind described, having in combination with an electric motor, a shaft rotatable by said motor and mounted therein for longitudinal movement, a switch associated with the motor and adapted to control the current thereto, said switch being opened and closed as said shaft is moved longitudinally and means for imparting longitudinal reciprocating movement to said shaft supported within the motor housing, including an operating trigger having a por,- tioli thereof extending exteriorly of said housing, said operating trigger adapted to engage a cam shoe integral with said movement imparting means.

3. In a machine ofthe kind described, having in combination with an electric motor, a shaft rotatable by said motor and mounted therein for longitudinal movement, a switch associated with the motor and adapted to control the current thereto, said switch being o ened and closed as said lshaft is moved longltudinally' and means for imparting lon itudinal reciprocating movement to said shaft yincluding a shaft engaging member having a cam plate,.and a trigger slidably engaging the cam surface of said plate.

'4. In a machine of the kind described, having in combination with an electric motor, a shaft rotatable by said motor and mounted therein :for longitudinal movement, a switch associated with the motor and adapted to control the current thereto,

said switch being opened and closed as said shaft is moved longitudinally, a pivotally mounted shaft engaging yoke, a cam plate disposed at right angles to the axis of said shaft'formedintegrally with said yoke and a pivotally `supported trigger having its inner end in sliding engagement with the cam surface of said `cam plate whereby when movement, transverse to the .axis of said shaft'is imparted to the outer end of said trigger, said shaft is moved longitudinally.

In testimony whereof we hereunto aiix our signatures this 29th day of September,

` HEZEKIAH POWELL.

WALTER P. GIOVES. 

